Bob and John  math puzzle
Bob and John form a team together. Bob is as old as John will be when Bob is twice as old as John was when Bob was half as old as the sum of their current ages. John is as old as Bob was when John was half as old as he will become over ten years.
How old are Bob and John?
How old are Bob and John?
Answer
John is 30 years old and Bob 40.
